Daniel Bedeleanu
ea49cd6e4a
- Create backend/services/image_storage.py with 4 core functions:
- sanitize_filename(): remove unsafe chars, limit to 255 chars, convert to lowercase
- get_unique_filename(): handle collisions with UUID suffix (format: {name}_{uuid8}_{variant}.jpg)
- ensure_image_directories(): create /images/ root and category subdirs on startup
- save_image(): save bytes to /images/{category}/{filename}, returns relative path
- Create comprehensive test suite (22 tests) covering all functionality
- Integrate ensure_image_directories() into FastAPI startup event
- Directory structure: /images/{category}/{filename}
- Collision handling: auto-suffix with UUID if filename exists
- All tests passing, pathlib.Path for safe operations
43 lines
1.0 KiB
Python
43 lines
1.0 KiB
Python
#
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# This file is part of pyasn1-modules software.
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#
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# Created by Russ Housley.
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#
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# Copyright (c) 2019, Vigil Security, LLC
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# License: http://snmplabs.com/pyasn1/license.html
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#
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# Experiment for Hash Functions with Parameters in the CMS
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#
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# ASN.1 source from:
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# https://www.rfc-editor.org/rfc/rfc6210.txt
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#
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from pyasn1.type import constraint
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from pyasn1.type import univ
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from pyasn1_modules import rfc5280
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id_alg_MD5_XOR_EXPERIMENT = univ.ObjectIdentifier('1.2.840.113549.1.9.16.3.13')
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class MD5_XOR_EXPERIMENT(univ.OctetString):
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pass
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MD5_XOR_EXPERIMENT.subtypeSpec = constraint.ValueSizeConstraint(64, 64)
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mda_xor_md5_EXPERIMENT = rfc5280.AlgorithmIdentifier()
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mda_xor_md5_EXPERIMENT['algorithm'] = id_alg_MD5_XOR_EXPERIMENT
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mda_xor_md5_EXPERIMENT['parameters'] = MD5_XOR_EXPERIMENT()
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# Map of Algorithm Identifier OIDs to Parameters added to the
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# ones that are in rfc5280.py.
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_algorithmIdentifierMapUpdate = {
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id_alg_MD5_XOR_EXPERIMENT: MD5_XOR_EXPERIMENT(),
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}
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rfc5280.algorithmIdentifierMap.update(_algorithmIdentifierMapUpdate)
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